Cube
Reaction GTC Pro 27.5" 2017 Mountain Bike

We take the "Pro" label seriously. So we started with a very light but stiff carbon frame and added some of the best components we could find, including a 2x11 Shimano XT drive group. The Reaction GTC Pro is the weapon of choice for everything from fast trail blasts to flat-out racing - in both 27.5 and 29 inch versions.

Frame: You can expect a peerless carbon frame from the Reaction GTC - it was created with the innovative twin mould technique. Fastidious design details like the large tube profiles, tapered head tube, PressFit bottom bracket shell and X12 quick release axle at the rear combine to create a balanced, efficient and precise chassis which is also extraordinarily light. And, although it's very stiff, it won't beat you up thanks to the 27.2mm diameter seat post. Neat touches include internal cable routing and the chainstay-mounted disc brake mount. Agile Ride Geometry is part of the total package, delivering precise handling even on narrow, twisty singletrack.